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(No Model.)-

J. F; O'NEILL. LASTING NIPPBRS.

No. 473,015. Patented Apr. 19, 1892.

UNTTED STATES PATENT @rrrcn.

JAMES F. ONEILL, OF HORNELLSVILLE, NEW YORK, ASSIGNOR TO THEWHIFFEN-LAKE LAS'IING MACHINE COMPANY, OF SAME PLACE.

LASTING- NIPPERS.

SPECIFICATION forming part of Letters Patent No. 473,015, dated April19, 1892. Application filed October 28, 1890. Renewed September 15,1891. Serial No. 405.761. (N0 model.)

To all whom it may concern.-

Be it known that I, JAMES F. ONEILL, a citizen of the United States, anda resident of Hornellsville, Steuben county, New York, have inventedcertain Improvements in Lasting-Nippers, of which the following is aspecification.

My invention relates to certain improvements in the lasting-nippers setforth in the application for patent filed by David Lake October 31,1889, renewal filed August 21, 1890, Serial No. 362,570, the object ofmy invention being to so construct the nippers that the upper will beseized by the grippingjaws the moment it is released from the slippingjaws, as fully described hereinafter.

Figure 1 is a perspective view of my improved nippers. Fig. 2 is aviewshowing the jaws open and the upper within the jaws. Figs. 3, 4, and 5are views illustrating the operation of my improved nippers. Fig. 6 is aView showing a jaw provided with two supplementary jaws.

It will be understood that in forcing an upper onto a last great caremust be exercised inmanipulating the nippers so that the several sets ofnippers will pull upon their respective portions of the upper to such anextent as to bring these portions of the upper to their respective finalpositions and at the same time prevent the tearing of leather.Consequently in machines heretofore constructed each nipper has had tobe adjusted upon the upper prior to lasting. Hence the time expended inthis adjustment of each nipper was often as long if not longer than itwould take a skilled laster to last a shoe by hand.

The lasting-nippers which I will now pro:

ceed to describe are so constructed as to overcome the objections noted.

A is a hollow spindle having a fixed jaw a, and pivoted to this spindleat c is a lever B, having at one end a jawb and at the opposite end anarm 12', so formed as to be acted upon by a roller or stud d on a sleeveD on the tubular spindle A. This sleeve is operated by avertically-movable rod D, adapted to the tubular spindle A, the sleevebeing connected to said rod by a pin cl, which passes through slot-s ain the tubular spindle. Hence on the vertical movement of either the rodD or the tubular spindle A the jaw 17 will be moved toward or from thejaw a.

It will be understood that in carrying out my invention theabove-described special construction of operating devices need not beadhered to.

In the present instance the jaw a has a smooth face, and the oppositejaw b carries a supplementary jaw B',pivoted at b in the presentinstance. This supplemental jaw has a serrated or roughenedgripping-face e and a smooth slipping face f, preferably rounded, asshown in the drawings. The supplemental jaw B is pivoted to the jaw b inthe present instance atits upper end, so that it can swing on the saidjaw. A spring g on the jaw 12 rests against the rear of the supplementaljaw B, tending to force the jaw forward, so'that the first portion ofthe supplemental jaw to come in contact with an upper would be thesmooth face f, as shown in Fig. 3, and when power is applied thesupplemental jaw' assumes the position shown in Fig. 4, the portion e,striking against the jaw 12, as shown in said figure, limiting themovement of the supplemental jaw. When the edge of the upper passes thesmooth portion of the supplemental jaw, the spring forces the roughenedface 8 against the upper, which at once impinges upon the upper andholds it without slipping, so that any continued pull upon the nipperswould draw the upper tightly over the last. The pivotpoint of thesupplemental jaw is above the acting face of the roughened portion.Consequently when tension is applied to the upper or downward pressureis applied to the nippers, the jaws will grip the upper more firmly,

the teeth oft-he jaw being so cut that they a will be thrown back clearof the upper when the upper is between the smooth face of the jaw andthe opposite jaw. By simply moving the sleeve D upward or the tubularspindle downward the jaws of the nippers will be readily opened, so asto free the upper. In order to allow the projecting smooth portion f tohave free play, in the present instance an orifice a is made in the jaw17. to permit said projection f to pass into or through the jaw.

In Fig. 6 I have shown the supplemental jaw carried by the fixed jaw a,while in the other figures the jaw is carried by movable jaws b, and inFig. 6 I have shown two supplemental jaws situated side by side, hung inthe present instance to a single pivot-pin, but otherwise independent,each having an independent spring and an independent movement, thisstyle of jaw being especially useful at the heel portion of the upper orat the short curves at the instep, where it would be impossible to placethe jaws having a single supplementaryjaw, as the construction wouldhave to be too delicate in order to secure the object attained by me.

I claim as my invention 1. The combination, in lasting-nippers, of themain jaws with a supplementary jaw carried by one of the main jaws, saidsupplementary jaw having an outer roughened or toothed portion forgripping the upper, and an inner plain projection extending beyond thetoothed or roughened portion and serving to hold the latter out ofaction until the plain bearing has passed beyond the upper,substantially as described.

2. The combination, in lasting-nippers, of the two main jaws, one ofwhich is smooth, a supplementary jaw pivoted to the opposite main jaw,said supplementary jaw having an outer roughened or toothed portion, andan inner plain bearing portion projecting forward beyond the toothed orroughened portion, with a'spring bearing upon the supplementary jaw toforce it outward, the plain main jaw having an orifice into which thesmooth portion of the supplementary jaw can project when the roughenedjaw is in action, substantially as described.

3. The combination of the main jaws, one

JAMES F. ONEILL. Witnesses:

DAVID LAKE, LEON LAKE.

